What effect did the issue of slavery have on
political parties in the 1850s?

Slavery was THE great debate of the 1850's as was the question of continuing a union that threatened the lives and property of the South. It caused Lincoln's election in 1860 and fueled the movement to secession and war. Slavery was the dividing point over which there was a limit to the compromises that could be effected. It clearly drove the decade as it had shaped the whole century

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Explanation:

president franklin roosevelt supported the tva as part of his first new deal measures approved by congress in 1933. this new agency was designed to control floods, produce electric power, and improve the lives of people living in the tennessee valley. the tva accomplished many of these goals despite problems.

the first forms of writing came from them in the form of pictographs around 3100 bc.